package ooday05;

public class StaticFinalDemo {
    public static void main(String[] args) {
        System.out.println(Loo.PI);
        System.out.println(Loo.a);
        System.out.println(Loo.COUNT);
    }
}
class Loo{
    public static int a=5;
    public static final int COUNT=5;
    public static final double PI=3.1415926;
    //public static final double IP;//常量必须声明初始化
}